Deputies responded to a home in the 4800 block of Backbay Road off Tom Starling Road east of I-95.
The woman was found shot dead in front of the home.
Deputies have not released the woman's name.
The sheriff's office said the shooting was not random, and there appears to be no threat to the public.
A suspect is in custody.
Anyone with information regarding this investigation is asked to please call Cumberland County Sheriff's Office Homicide Detective Senior Sgt. J. Mcleod at (910) 677-5548. To remain anonymous, contact Crimestoppers at (910) 483-TIPS (8477). Crimestoppers information can also be submitted electronically.
ABC11 is tracking crime and safety across Fayetteville and other neighborhoods